Revert of [js] Avoid %_ClassOf for collection builtins.

Revert of [js] Avoid %_ClassOf for collection builtins. (patchset #4 id:60001 of https://codereview.chromium.org/2814773005/ )

Reason for revert:
Breaks node.js integration bot: https://build.chromium.org/p/client.v8.fyi/builders/V8%20-%20node.js%20integration/builds/5374/steps/build%20addons%20and%20test%20node.js/logs/stdio

Original issue's description:
> [js] Avoid %_ClassOf for collection builtins.
> 
> The collection builtins (Map, Set, WeakMap, WeakSet) are still written
> in JavaScript and make heavy use of %_ClassOf, which is kind of
> expensive compared to a simple instance type check. Change that to use
> simple instance type checks instead.
> 
> R=jarin@chromium.org
> BUG=v8:6261, v8:6278, v8:6344
> 
> Review-Url: https://codereview.chromium.org/2814773005
> Cr-Commit-Position: refs/heads/master@{#45106}
> Committed: https://chromium.googlesource.com/v8/v8/+/28170099fd1efc84a724ef133f335fec521c0852

TBR=jarin@chromium.org,adamk@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:6261, v8:6278, v8:6344
Review-Url: https://codereview.chromium.org/2860123002
Cr-Commit-Position: refs/heads/master@{#45108}
Committed: https://chromium.googlesource.com/v8/v8/+/ae5ae1cceedcc11b84d7fac1d9937bbf14cd3533

[Benedikt Meurer, 2017-05-04 18:43:22]

The CQ bit was checked by bmeurer@chromium.org

[Benedikt Meurer, 2017-05-04 18:43:23]

Created Revert of [js] Avoid %_ClassOf for collection builtins.

[commit-bot: I haz the power, 2017-05-04 18:43:33]

CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-05-04 18:43:45]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1493923402638720, "parent_rev":
"0015bbb5e115f072b5edcc834d59f7958d1e2cc8", "commit_rev":
"ae5ae1cceedcc11b84d7fac1d9937bbf14cd3533"}

[commit-bot: I haz the power, 2017-05-04 18:43:52]

Description was changed from

==========
Revert of [js] Avoid %_ClassOf for collection builtins. (patchset #4 id:60001 of
https://codereview.chromium.org/2814773005/ )

Reason for revert:
Breaks node.js integration bot:
https://build.chromium.org/p/client.v8.fyi/builders/V8%20-%20node.js%20integr...

Original issue's description:
> [js] Avoid %_ClassOf for collection builtins.
> 
> The collection builtins (Map, Set, WeakMap, WeakSet) are still written
> in JavaScript and make heavy use of %_ClassOf, which is kind of
> expensive compared to a simple instance type check. Change that to use
> simple instance type checks instead.
> 
> R=jarin@chromium.org
> BUG=v8:6261,v8:6278,v8:6344
> 
> Review-Url: https://codereview.chromium.org/2814773005
> Cr-Commit-Position: refs/heads/master@{#45106}
> Committed:
https://chromium.googlesource.com/v8/v8/+/28170099fd1efc84a724ef133f335fec521...

TBR=jarin@chromium.org,adamk@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:6261,v8:6278,v8:6344
==========

to

==========
Revert of [js] Avoid %_ClassOf for collection builtins. (patchset #4 id:60001 of
https://codereview.chromium.org/2814773005/ )

Reason for revert:
Breaks node.js integration bot:
https://build.chromium.org/p/client.v8.fyi/builders/V8%20-%20node.js%20integr...

Original issue's description:
> [js] Avoid %_ClassOf for collection builtins.
> 
> The collection builtins (Map, Set, WeakMap, WeakSet) are still written
> in JavaScript and make heavy use of %_ClassOf, which is kind of
> expensive compared to a simple instance type check. Change that to use
> simple instance type checks instead.
> 
> R=jarin@chromium.org
> BUG=v8:6261,v8:6278,v8:6344
> 
> Review-Url: https://codereview.chromium.org/2814773005
> Cr-Commit-Position: refs/heads/master@{#45106}
> Committed:
https://chromium.googlesource.com/v8/v8/+/28170099fd1efc84a724ef133f335fec521...

TBR=jarin@chromium.org,adamk@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:6261,v8:6278,v8:6344

Review-Url: https://codereview.chromium.org/2860123002
Cr-Commit-Position: refs/heads/master@{#45108}
Committed:
https://chromium.googlesource.com/v8/v8/+/ae5ae1cceedcc11b84d7fac1d9937bbf14c...
==========

[commit-bot: I haz the power, 2017-05-04 18:43:53]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/ae5ae1cceedcc11b84d7fac1d9937bbf14c...